[TIMOB-10972] iOS 6: Window orientation modes are neglected for second level child window

var _window = Ti.UI.createWindow({
	orientationModes : [Titanium.UI.LANDSCAPE_LEFT, Titanium.UI.LANDSCAPE_RIGHT],
});

		var aBtn = Ti.UI.createButton({
			title:'open',
			height: 100,
			width: 100
		});
		
		aBtn.addEventListener('click', function(){
			var toplevel = Ti.UI.createWindow({
				orientationModes : [Ti.UI.PORTRAIT, Ti.UI.UPSIDE_PORTRAIT],
				backgroundColor : 'blue'
			});

			var btn = Ti.UI.createButton({
				title:'close',
				height: 100,
				width: 100
			});
		
			btn.addEventListener('click', function() {
		    	toplevel.close();
			});
			toplevel.add(btn);
		
			var win = Ti.UI.createWindow({
				orientationModes : [Titanium.UI.LANDSCAPE_LEFT, Titanium.UI.LANDSCAPE_RIGHT],
				backgroundColor : 'green'
			});

			var b = Ti.UI.createButton({
				title : 'open',
				width : 100,
				height : 50,
				bottom:0
			});
			b.addEventListener('click', function() {
				win.open({
					modal : true
				});
			});

			var b3 = Ti.UI.createButton({
				title : 'close',
				width : 100,
				height : 50,
				bottom : 20
			});
			b3.addEventListener('click', function() {
				win.close();
			});

			toplevel.add(b);
			win.add(b3);
			toplevel.open(); 
		});
		
_window.add(aBtn);
_window.open();